Varnish is a great reverse proxy and very useful for load balancing. Here you can find a tutorial on installing Varnish: Installing and configuring Varnish HTTP accelerator. Munin is a network/system monitoring application that presents output in graphs through a web interface. If you haven’t installed it already, use this [...]
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Debian has released a stable version of Debian 5.0 (lenny). If you’re running previous version of Debian, you can easily upgrade. 1. Update all packages currently installed to the latest etch versions apt-get update apt-get upgrade
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rsync is a software application for Unix systems which synchronizes files and directories from one location to another while minimizing data transfer using delta encoding when appropriate. An important feature of rsync not found in most similar programs/protocols is that the mirroring takes place with only one transmission in each [...]
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PostgreSQL is a powerful, open source object-relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. 1. Install packages apt-get install postgresql postgresql-client
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Network File System (NFS) is a network file system protocol originally developed by Sun Microsystems in 1983, allowing a user on a client computer to access files over a network as easily as if the network devices were attached to its local disks. Server 1. Install the server package apt-get install nfs-kernel-server
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When connecting to a server without a monitor by VNC, X won’t allow you to select screen resolution higher than 640×480 on next restart. This can be easily fixed: Open /etx/X11/xorg.conf using a text editor (pico /etx/X11/xorg.conf) and add these two lines in the Monitor section of the config file: HorizSync 31-95 VertRefresh [...]
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By default iptables is setup on Debian etch but there are no rules configured. In this tutorial we’ll configure some rules and load them into iptables on startup. 1. Rules file Create a new file that will contain a shell script to insert rules into iptables (pico /etc/firewall-rules.sh) and add this content as template:
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Monitoring PowerDNS is easy with MRTG, just install these two packages and create a config file and you’re good to go! apt-get install libsnmp-session-perl mrtg
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Creating a private CA can be useful if you have a lot of services encrypting data for internal use but don’t need the domain to be verified by a public CA like Verisign, Thawte etc. By importing the CA to all computers that will use these services users won’t get the a popup in IE and Firefox saying that the certificate is [...]
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VMware Server installs on any existing server hardware and partitions a physical server into multiple virtual machines by abstracting processor, memory, storage and networking resources, giving you greater hardware utilization and flexibility. Streamline software development and testing and simplify server provisioning as you utilize the [...]
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